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In a clockwise system :-

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In a clockwise system :-
A. `hatjxxhatk =hati`
B. `hatk.hati=1`
C. `hati.hati=0`
D. `hatjxxhatj=1`
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Correct Answer - A
(a) `AB sin theta =sqrt(3) AB cos thetaor tan theta =sqrt(3)`
`therwfore theta=60^(@)`
` "Now" ,|A+B|= sqrt(A^(2) +B^(2) +2AB cos60^(@))`
`= sqrt(A^(2)+B^(@)+AB)`
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In a clockwise system:
asked Jun 25, 2019 in Physics by KritikaSahu (82.2k points)

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